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ES2133372T3 - Composicion a base de un oxido mixto de cerio y de circonio, preparacion y utilizacion. - Google Patents

Composicion a base de un oxido mixto de cerio y de circonio, preparacion y utilizacion.

Info

Publication number
ES2133372T3
ES2133372T3 ES93403030T ES93403030T ES2133372T3 ES 2133372 T3 ES2133372 T3 ES 2133372T3 ES 93403030 T ES93403030 T ES 93403030T ES 93403030 T ES93403030 T ES 93403030T ES 2133372 T3 ES2133372 T3 ES 2133372T3
Authority
ES
Spain
Prior art keywords
cerium
mixed oxide
zirconia
zirconium
preparation
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Expired - Lifetime
Application number
ES93403030T
Other languages
English (en)
Inventor
Thierry Chopin
Olivier Touret
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Rhodia Chimie SAS
Original Assignee
Rhodia Chimie SAS
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Family has litigation
First worldwide family litigation filed litigation Critical https://patents.darts-ip.com/?family=9436835&utm_source=google_patent&utm_medium=platform_link&utm_campaign=public_patent_search&patent=ES2133372(T3) "Global patent litigation dataset” by Darts-ip is licensed under a Creative Commons Attribution 4.0 International License.
Application filed by Rhodia Chimie SAS filed Critical Rhodia Chimie SAS
Application granted granted Critical
Publication of ES2133372T3 publication Critical patent/ES2133372T3/es
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

Links

Classifications

    • C—CHEMISTRY; METALLURGY
    • C01—INORGANIC CHEMISTRY
    • C01G—COMPOUNDS CONTAINING METALS NOT COVERED BY SUBCLASSES C01D OR C01F
    • C01G25/00—Compounds of zirconium
    • C01G25/006—Compounds containing, besides zirconium, two or more other elements, with the exception of oxygen or hydrogen
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01J—CHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOID CHEMISTRY; THEIR RELEVANT APPARATUS
    • B01J23/00—Catalysts comprising metals or metal oxides or hydroxides, not provided for in group B01J21/00
    • B01J23/002—Mixed oxides other than spinels, e.g. perovskite
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01D—SEPARATION
    • B01D53/00—Separation of gases or vapours; Recovering vapours of volatile solvents from gases; Chemical or biological purification of waste gases, e.g. engine exhaust gases, smoke, fumes, flue gases, aerosols
    • B01D53/34—Chemical or biological purification of waste gases
    • B01D53/92—Chemical or biological purification of waste gases of engine exhaust gases
    • B01D53/94—Chemical or biological purification of waste gases of engine exhaust gases by catalytic processes
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01J—CHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOID CHEMISTRY; THEIR RELEVANT APPARATUS
    • B01J23/00—Catalysts comprising metals or metal oxides or hydroxides, not provided for in group B01J21/00
    • B01J23/10—Catalysts comprising metals or metal oxides or hydroxides, not provided for in group B01J21/00 of rare earths
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01J—CHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOID CHEMISTRY; THEIR RELEVANT APPARATUS
    • B01J35/00—Catalysts, in general, characterised by their form or physical properties
    • B01J35/60—Catalysts, in general, characterised by their form or physical properties characterised by their surface properties or porosity
    • B01J35/61—Surface area
    • C—CHEMISTRY; METALLURGY
    • C01—INORGANIC CHEMISTRY
    • C01G—COMPOUNDS CONTAINING METALS NOT COVERED BY SUBCLASSES C01D OR C01F
    • C01G25/00—Compounds of zirconium
    • C—CHEMISTRY; METALLURGY
    • C01—INORGANIC CHEMISTRY
    • C01G—COMPOUNDS CONTAINING METALS NOT COVERED BY SUBCLASSES C01D OR C01F
    • C01G25/00—Compounds of zirconium
    • C01G25/02—Oxides
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01D—SEPARATION
    • B01D2255/00—Catalysts
    • B01D2255/20—Metals or compounds thereof
    • B01D2255/206—Rare earth metals
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01D—SEPARATION
    • B01D2255/00—Catalysts
    • B01D2255/20—Metals or compounds thereof
    • B01D2255/207—Transition metals
    • B01D2255/20715—Zirconium
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01D—SEPARATION
    • B01D2255/00—Catalysts
    • B01D2255/40—Mixed oxides
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01J—CHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOID CHEMISTRY; THEIR RELEVANT APPARATUS
    • B01J2523/00—Constitutive chemical elements of heterogeneous catalysts
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01J—CHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOID CHEMISTRY; THEIR RELEVANT APPARATUS
    • B01J2523/00—Constitutive chemical elements of heterogeneous catalysts
    • B01J2523/30—Constitutive chemical elements of heterogeneous catalysts of Group III (IIIA or IIIB) of the Periodic Table
    • B01J2523/36—Yttrium
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01J—CHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOID CHEMISTRY; THEIR RELEVANT APPARATUS
    • B01J2523/00—Constitutive chemical elements of heterogeneous catalysts
    • B01J2523/30—Constitutive chemical elements of heterogeneous catalysts of Group III (IIIA or IIIB) of the Periodic Table
    • B01J2523/37—Lanthanides
    • B01J2523/3712—Cerium
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01J—CHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOID CHEMISTRY; THEIR RELEVANT APPARATUS
    • B01J2523/00—Constitutive chemical elements of heterogeneous catalysts
    • B01J2523/40—Constitutive chemical elements of heterogeneous catalysts of Group IV (IVA or IVB) of the Periodic Table
    • B01J2523/48—Zirconium
    • C—CHEMISTRY; METALLURGY
    • C01—INORGANIC CHEMISTRY
    • C01P—INDEXING SCHEME RELATING TO STRUCTURAL AND PHYSICAL ASPECTS OF SOLID INORGANIC COMPOUNDS
    • C01P2002/00—Crystal-structural characteristics
    • C01P2002/30—Three-dimensional structures
    • C—CHEMISTRY; METALLURGY
    • C01—INORGANIC CHEMISTRY
    • C01P—INDEXING SCHEME RELATING TO STRUCTURAL AND PHYSICAL ASPECTS OF SOLID INORGANIC COMPOUNDS
    • C01P2002/00—Crystal-structural characteristics
    • C01P2002/50—Solid solutions
    • C—CHEMISTRY; METALLURGY
    • C01—INORGANIC CHEMISTRY
    • C01P—INDEXING SCHEME RELATING TO STRUCTURAL AND PHYSICAL ASPECTS OF SOLID INORGANIC COMPOUNDS
    • C01P2002/00—Crystal-structural characteristics
    • C01P2002/70—Crystal-structural characteristics defined by measured X-ray, neutron or electron diffraction data
    • C01P2002/72—Crystal-structural characteristics defined by measured X-ray, neutron or electron diffraction data by d-values or two theta-values, e.g. as X-ray diagram
    • C—CHEMISTRY; METALLURGY
    • C01—INORGANIC CHEMISTRY
    • C01P—INDEXING SCHEME RELATING TO STRUCTURAL AND PHYSICAL ASPECTS OF SOLID INORGANIC COMPOUNDS
    • C01P2002/00—Crystal-structural characteristics
    • C01P2002/70—Crystal-structural characteristics defined by measured X-ray, neutron or electron diffraction data
    • C01P2002/77—Crystal-structural characteristics defined by measured X-ray, neutron or electron diffraction data by unit-cell parameters, atom positions or structure diagrams
    • C—CHEMISTRY; METALLURGY
    • C01—INORGANIC CHEMISTRY
    • C01P—INDEXING SCHEME RELATING TO STRUCTURAL AND PHYSICAL ASPECTS OF SOLID INORGANIC COMPOUNDS
    • C01P2004/00—Particle morphology
    • C01P2004/80—Particles consisting of a mixture of two or more inorganic phases
    • C01P2004/82—Particles consisting of a mixture of two or more inorganic phases two phases having the same anion, e.g. both oxidic phases
    • C—CHEMISTRY; METALLURGY
    • C01—INORGANIC CHEMISTRY
    • C01P—INDEXING SCHEME RELATING TO STRUCTURAL AND PHYSICAL ASPECTS OF SOLID INORGANIC COMPOUNDS
    • C01P2006/00—Physical properties of inorganic compounds
    • C01P2006/12—Surface area
    • C—CHEMISTRY; METALLURGY
    • C01—INORGANIC CHEMISTRY
    • C01P—INDEXING SCHEME RELATING TO STRUCTURAL AND PHYSICAL ASPECTS OF SOLID INORGANIC COMPOUNDS
    • C01P2006/00—Physical properties of inorganic compounds
    • C01P2006/12—Surface area
    • C01P2006/13—Surface area thermal stability thereof at high temperatures

Landscapes

  • Chemical & Material Sciences (AREA)
  • Organic Chemistry (AREA)
  • Engineering & Computer Science (AREA)
  • Inorganic Chemistry (AREA)
  • Materials Engineering (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Analytical Chemistry (AREA)
  • Health & Medical Sciences (AREA)
  • Biomedical Technology (AREA)
  • Environmental & Geological Engineering (AREA)
  • Combustion & Propulsion (AREA)
  • General Chemical & Material Sciences (AREA)
  • Oil, Petroleum & Natural Gas (AREA)
  • Catalysts (AREA)
  • Inorganic Compounds Of Heavy Metals (AREA)
  • Polishing Bodies And Polishing Tools (AREA)
  • Dental Preparations (AREA)
  • Exhaust Gas Treatment By Means Of Catalyst (AREA)
  • Glass Compositions (AREA)
  • Paints Or Removers (AREA)
  • Materials For Medical Uses (AREA)
  • Organic Low-Molecular-Weight Compounds And Preparation Thereof (AREA)

Abstract

LA INVENCION SE REFIERE A NUEVAS COMPOSICIONES A BASE DE UN OXIDO MIXTO DE CERIO Y DE CIRCONIO (SOLUCIONES SOLIDAS), QUE TIENEN SUPERFICIES ESPECIFICAS MUY ELEVADAS, ES DECIR, AL MENOS SUPERIORES A 80 M2/G Y, PREFERENTEMENTE, DE, AL MENOS, 100 M2/G O INCLUSO 150 M2/G, SIENDO ADEMAS LAS CITADAS SUPERFICIES ESTABLES TERMICAMENTE. LAS CANTIDADES DE CIRCONIO EN SOLUCION SOLIDA EN EL OXIDO DE CERIO PUEDEN SER MUY IMPORTANTES, POR EJEMPLO ESTAR COMPRENDIDAS ENTRE 1 Y 60% ATOMICO. SE OBTIENEN CONFORME A UN PROCEDIMIENTO QUE CONSISTE EN CALENTAR UNA MEZCLA ACUOSA CONTENIENDO, EN LAS PROPORCIONES ESTEQUIOMETRICAS REQUERIDAS, UN COMPUESTO SOLUBLE DE CERIO, TAL COMO NITRATO CERICO, Y UN COMPUESTO SOLUBLE EN CIRCONIO, TAL COMO NITRATO DE CIRCONIO, A RECUPERAR, EN ESPECIAL MEDIANTE FILTRACION, EL PRODUCTO DE REACCION ASI FORMADO Y DESPUES, POR ULTIMO, EVENTUALMENTE, A CALCINAR ESTE PRODUCTO. LAS COMPOSICIONES CONFORME A LA INVENCION PUEDEN UTILIZARSE COMO CATALIZADORES Y/O SOPORTES DE CATALIZADORES, ENPARTICULAR EN EL AMBITO DE LA POST-COMBUSTION AUTOMOVIL.
ES93403030T 1992-12-21 1993-12-15 Composicion a base de un oxido mixto de cerio y de circonio, preparacion y utilizacion. Expired - Lifetime ES2133372T3 (es)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR9215376A FR2699524B1 (fr) 1992-12-21 1992-12-21 Composition à base d'un oxyde mixte de cérium et de zirconium, préparation et utilisation.

Publications (1)

Publication Number Publication Date
ES2133372T3 true ES2133372T3 (es) 1999-09-16

Family

ID=9436835

Family Applications (1)

Application Number Title Priority Date Filing Date
ES93403030T Expired - Lifetime ES2133372T3 (es) 1992-12-21 1993-12-15 Composicion a base de un oxido mixto de cerio y de circonio, preparacion y utilizacion.

Country Status (13)

Country Link
US (2) US5693299A (es)
EP (1) EP0605274B1 (es)
JP (1) JP2947449B2 (es)
KR (1) KR100304508B1 (es)
AT (1) ATE179680T1 (es)
AU (1) AU668236B2 (es)
BR (1) BR9305146A (es)
CA (1) CA2111892C (es)
DE (2) DE605274T1 (es)
ES (1) ES2133372T3 (es)
FI (1) FI119920B (es)
FR (1) FR2699524B1 (es)
ZA (1) ZA939353B (es)

Families Citing this family (100)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2701471B1 (fr) 1993-02-10 1995-05-24 Rhone Poulenc Chimie Procédé de synthèse de compositions à base d'oxydes mixtes de zirconium et de cérium, compositions ainsi obtenues et utilisations de ces dernières.
FR2701472B1 (fr) 1993-02-10 1995-05-24 Rhone Poulenc Chimie Procédé de préparation de compositions à base d'oxydes mixtes de zirconium et de cérium.
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ATE179680T1 (de) 1999-05-15
FI935748A (fi) 1994-06-22
ZA939353B (en) 1994-09-16
DE69324785T2 (de) 1999-12-02
US5712218A (en) 1998-01-27
AU668236B2 (en) 1996-04-26
KR100304508B1 (ko) 2001-11-22
BR9305146A (pt) 1994-11-01
EP0605274B1 (fr) 1999-05-06
AU5234793A (en) 1994-06-30
US5693299A (en) 1997-12-02
JP2947449B2 (ja) 1999-09-13
KR940013602A (ko) 1994-07-15
DE69324785C5 (de) 2019-10-31
CA2111892A1 (fr) 1994-06-22
EP0605274A1 (fr) 1994-07-06
FI119920B (fi) 2009-05-15
FI935748A0 (fi) 1993-12-20
FR2699524A1 (fr) 1994-06-24
DE69324785D1 (de) 1999-06-10
DE605274T1 (de) 1998-03-26
JPH06226094A (ja) 1994-08-16
CA2111892C (fr) 1999-12-14
FR2699524B1 (fr) 1995-02-10

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